Prosecution Insights
Last updated: October 02, 2026

Examiner: DIAZ, MATTHEW R

Tech Center 1700 • Art Units: 1718 1742 1743 1761 1771 1788

This examiner grants 54% of resolved cases

Analysis

Matthew R. Diaz presents a more challenging prosecution profile in Art Unit 1718 of Tech Center 1700, with an allowance rate of 54.0% over 539 resolved cases. However, the interview lift of 43.4% is exceptionally high, indicating that interviews are nearly essential for success with this examiner. The median days to allowance is 1027, which is a longer timeline that reflects the potential for multiple rounds of prosecution before reaching an allowance.

Practitioners should prioritize interviews when working with this examiner, as the 43.4% lift can bridge the gap between the 54.0% baseline and a much higher success rate. The 1027-day median suggests that applicants should be prepared for a more extended process. Given the 539 resolved cases, the data clearly shows that direct communication is the most effective way to navigate the examiner's requirements. In Tech Center 1700, leveraging the interview process is a critical strategy for improving the odds of allowance and potentially shortening the 1027-day path to success in Art Unit 1718.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

54.0%
Allow Rate
-11.0% vs TC avg
589
Total Applications
+43.4%
Interview Lift
1027
Avg Prosecution Days
Based on 539 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
14.5%
§102 Novelty
45.5%
§103 Obviousness
28.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18473507 COMPOSITIONS Non-Final OA MEXICHEM FLUOR S.A DE C.V.
18131426 COMPOSITION, HEAT CYCLE SYSTEM, AND METHOD FOR SUPPRESSING DISPROPORTIONATION REACTION IN REFRIGERANT Non-Final OA DAIKIN INDUSTRIES, LTD.
18091670 USE OF COMPOSITION AS REFRIGERANT IN COMPRESSOR, COMPRESSOR, AND REFRIGERATION CYCLE APPARATUS Non-Final OA DAIKIN INDUSTRIES, LTD.
18091038 USE OF COMPOSITION AS REFRIGERANT IN COMPRESSOR, COMPRESSOR, AND REFRIGERATION CYCLE APPARATUS Non-Final OA DAIKIN INDUSTRIES, LTD.
17892759 AIR CONDITIONER Final Rejection DAIKIN INDUSTRIES, LTD.
17551757 COMPOSITION CONTAINING REFRIGERANT, USE OF SAME, REFRIGERATOR COMPRISING THE SAME, AND METHOD FOR OPERATING SAID REFRIGERATOR Non-Final OA DAIKIN INDUSTRIES, LTD.
17551822 REFRIGERANT-CONTAINING COMPOSITION, USE THEREOF, REFRIGERATOR USING SAME, AND OPERATION METHOD FOR SAID REFRIGERATOR Non-Final OA DAIKIN INDUSTRIES, LTD.
17471891 COMPOSITION CONTAINING 1,1,2-TRIFLUOROETHANE Final Rejection DAIKIN INDUSTRIES, LTD.
17394907 COMPOSITION CONTAINING TRANS-1,2-DIFLUOROETHYLENE (HFO-1132(E)) AND 1,1,1-TRIFLUOROETHANE (HFC-143A) AND METHOD FOR SEPARATING HFO-1132(E) AND HFC-143A FROM COMPOSITION CONTAINING HFO-1132(E) AND HFC-143A Non-Final OA DAIKIN INDUSTRIES, LTD.
18572454 REUSABLE ENVIRONMENTALLY FRIENDLY FOOD COOLING TECHNOLOGY Non-Final OA The Regents of the University of California
18516635 NOVEL COOLANTS WITH IMPROVED STORAGE STABILITY Final Rejection BASF SE
18658968 CORROSION INHIBITOR COMPOSITIONS AND METHODS OF USING THE COMPOSITIONS TO INHIBIT CORROSION Non-Final OA ChampionX LLC
18922376 COMPOSITIONS AND METHODS OF THERMAL CONTROL AND ENERGY STORAGE IN COMPOSITE POLYMER YARNS VIA STRAIN-INDUCED PHASE TRANSITIONS Non-Final OA Massachusetts Institute of Technology
18667751 OXYALKYLATED SURFACTANTS AS CORROSION INHIBITORS Non-Final OA Ecolab USA Inc.
18289057 CORROSION-INHIBITING ADDITIVES AND METHODS OF MAKING AND USE THEREOF Non-Final OA Ecolab USA Inc.
18540930 REFRIGERANTS HAVING LOW GWP, AND SYSTEMS FOR AND METHODS OF PROVIDING REFRIGERATION Non-Final OA HONEYWELL INTERNATIONAL INC.
18540931 REFRIGERANTS HAVING LOW GWP, AND SYSTEMS FOR AND METHODS OF PROVIDING REFRIGERATION Non-Final OA HONEYWELL INTERNATIONAL INC.
18241651 STABILIZED HEAT TRANSFER COMPOSITIONS, METHODS AND SYSTEMS Non-Final OA HONEYWELL INTERNATIONAL INC.
17556509 STABILIZED HEAT TRANSFER COMPOSITIONS, METHODS AND SYSTEMS Final Rejection HONEYWELL INTERNATIONAL INC.
18502740 RADIATIVE COOLING COMPOSITIONS, PRECURSORS FOR FORMING THE COMPOSITIONS, AND COATINGS FORMED FROM THE COMPOSITIONS Non-Final OA University of Maryland, College Park
18685614 FRAGRANCES WITH IMPROVED LONG-LASTING PERFORMANCE Non-Final OA Firmenich SA
18553850 FOAM STABILIZING COMPOSITION INCLUDING A SILOXANE CATIONIC SURFACTANT AND COLLOIDAL SILICA Non-Final OA Dow Silicones Corporation
18283482 BORON NITRIDE POWDER AND RESIN COMPOSITION Non-Final OA DENKA COMPANY LIMITED
18284330 Absorption Refrigeration Cycle and Compression-Absorption Refrigeration Cycle Non-Final OA Osaka Gas Co., Ltd.
18032814 COMPOSITE MATERIAL AND PROCESS FOR EXTRACTING LITHIUM USING THE SAME Final Rejection GEOLITH

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